[spellcheck] Updated Hunspell to 1.6.0

To pick up our upstreamed optimization for suggestions, and fuzzing bug fixes.

The license requirements were approved, by having README.chromium
specify which license it was using.

BUG=673424

Review-Url: https://codereview.chromium.org/2587363003
Cr-Commit-Position: refs/heads/master@{#443234}

third_party/hunspell/COPYING.LESSER

+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
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+other than an Application or a Combined Work as defined below.
+
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+Library.

third_party/hunspell/README

 About Hunspell
---------------
+==============
+
+NOTICE: Verison 2 is in the works. For contributing see
+[version 2 specification][v2spec] and the folder `src/hunspell2`.
+
+[v2spec]: https://github.com/hunspell/hunspell/wiki/Version-2-Specification
 
 Hunspell is a spell checker and morphological analyzer library and program
 designed for languages with rich morphology and complex word compounding or
 character encoding. Hunspell interfaces: Ispell-like terminal interface
-using Curses library, Ispell pipe interface, OpenOffice.org UNO module.
+using Curses library, Ispell pipe interface, C++ class and C functions.
 
 Hunspell's code base comes from the OpenOffice.org MySpell
 (http://lingucomponent.openoffice.org/MySpell-3.zip). See README.MYSPELL,
@@ -13,31 +18,27 @@ Hunspell is designed to eventually replace Myspell in OpenOffice.org.
 
 Main features of Hunspell spell checker and morphological analyzer:
 
-- Unicode support (affix rules work only with the first 65535 Unicode characters)
-
+- Unicode support (affix rules work only with the first 65535 Unicode
+  characters)
 - Morphological analysis (in custom item and arrangement style) and stemming
-
 - Max. 65535 affix classes and twofold affix stripping (for agglutinative
   languages, like Azeri, Basque, Estonian, Finnish, Hungarian, Turkish, etc.)
-
 - Support complex compoundings (for example, Hungarian and German)
-
 - Support language specific features (for example, special casing of
   Azeri and Turkish dotted i, or German sharp s)
-
 - Handle conditional affixes, circumfixes, fogemorphemes,
   forbidden words, pseudoroots and homonyms.
-
-- Free software (LGPL, GPL, MPL tri-license)
+- Free software. Versions 1.x are licenced under LGPL, GPL, MPL tri-license.
+  Version 2 is licenced only under GNU LGPL.
 
 Compiling on Unix/Linux and others
-----------------------------------
+==================================
 
-autoreconf -vfi
-./configure
-make
-make install	#if neccesary prefix with sudo
-ldconfig	#not needed on windows, on linux sudo may be needed
+	autoreconf -vfi
+	./configure
+	make
+	make install    #if neccesary prefix with sudo
+	ldconfig        #not needed on windows, on linux sudo may be needed
 
 For dictionary development, use the --with-warnings option of configure.
 
@@ -45,128 +46,130 @@ For interactive user interface of Hunspell executable, use the --with-ui option.
 
 The developer packages you need to compile Hunspell's interface:
 
-autoconf automake autopoint libtool g++
+	autoconf automake autopoint libtool g++
 
 optional developer packages:
 
-ncurses (need for --with-ui), eg. libncursesw5 for UTF-8
-readline (for fancy input line editing,
+- ncurses (need for --with-ui), eg. libncursesw5 for UTF-8
+- readline (for fancy input line editing,
   configure parameter: --with-readline)
-locale and gettext (but you can also use the
+- locale and gettext (but you can also use the
   --with-included-gettext configure parameter)
 
 Compiling on Windows
---------------------
+====================
 
-1. Compiling with Visual Studio
-
-Download the free Visual Studio Community Edition of Microsoft, open the 
-file hunspell/src/win_api/Hunspell.sln. Select the appropirate build (Debug, 
-Release, Win32, x64) and press Build.
-
-2. Compiling with Mingw64 and MSYS2
+1. Compiling with Mingw64 and MSYS2
+-----------------------------------
 
 Download Msys2, update everything and install the following packages:
 
-pacman -S base-devel mingw-w64-x86_64-toolchain mingw-w64-x86_64-libtool
+	pacman -S base-devel mingw-w64-x86_64-toolchain mingw-w64-x86_64-libtool
 
 Open Mingw-w64 Win64 prompt and compile the same way as on Linux, see above.
 
-3. Compiling in Cygwin environment
+2. Compiling in Cygwin environment
+----------------------------------
 
 Download and install Cygwin environment for Windows with the following
 extra packages: 
 
-make
-automake
-autoconf
-gcc-g++ development package
-ncurses, readline (for user interface)
-iconv (character conversion)
+- make
+- automake
+- autoconf
+- gcc-g++ development package
+- ncurses, readline (for user interface)
+- iconv (character conversion)
 
-3.1. Cygwin1.dll dependent compiling
+###3.1. Cygwin1.dll dependent compiling
 
 Same as on Linux.
 
 Testing
--------
+========
 
 Testing Hunspell (see tests in tests/ subdirectory):
 
-make check
+	make check
 
 or with Valgrind debugger:
 
-make check
-VALGRIND=[Valgrind_tool] make check
+	make check
+	VALGRIND=[Valgrind_tool] make check
 
 For example:
 
-make check
-VALGRIND=memcheck make check
+	make check
+	VALGRIND=memcheck make check
 
 Documentation
--------------
+=============
 
 features and dictionary format:
-man 5 hunspell
 
-man hunspell
-hunspell -h
+	man 5 hunspell
+	man hunspell
+	hunspell -h
+	
 http://hunspell.github.io/
 
 Usage
------
-
-The src/tools dictionary contains ten executables after compiling
-(or some of them are in the src/win_api):
-
-affixcompress: dictionary generation from large (millions of words) vocabularies
-  analyze: example of spell checking, stemming and morphological analysis
-  chmorph: example of automatic morphological generation and conversion
-  example: example of spell checking and suggestion
- hunspell: main program for spell checking and others (see manual)
-   hunzip: decompressor of hzip format
-     hzip: compressor of hzip format
-makealias: alias compression (Hunspell only, not back compatible with MySpell)
-    munch: dictionary generation from vocabularies (it needs an affix file, too).
-  unmunch: list all recognized words of a MySpell dictionary
-wordforms: word generation (Hunspell version of unmunch)
+=====
+
+The src/tools dictionary contains ten executables after compiling:
+
+- affixcompress: dictionary generation from large (millions of words)
+  vocabularies
+- analyze: example of spell checking, stemming and morphological analysis
+- chmorph: example of automatic morphological generation and conversion
+- example: example of spell checking and suggestion
+- hunspell: main program for spell checking and others (see manual)
+- hunzip: decompressor of hzip format
+- hzip: compressor of hzip format
+- makealias: alias compression (Hunspell only, not back compatible with MySpell)
+- munch: dictionary generation from vocabularies (it needs an affix file, too).
+- unmunch: list all recognized words of a MySpell dictionary
+- wordforms: word generation (Hunspell version of unmunch)
 
 After compiling and installing (see INSTALL) you can
 run the Hunspell spell checker (compiled with user interface)
 with a Hunspell or Myspell dictionary:
 
-hunspell -d en_US text.txt
+	hunspell -d en_US text.txt
 
 or without interface:
 
-hunspell
-hunspell -d en_UK -l <text.txt
+	hunspell
+	hunspell -d en_UK -l <text.txt
 
 Dictionaries consist of an affix and dictionary file, see tests/
 or http://wiki.services.openoffice.org/wiki/Dictionaries.
 
 Using Hunspell library with GCC
--------------------------------
+===============================
 
 Including in your program:
-#include <hunspell.hxx>
+
+	#include <hunspell.hxx>
 
 Linking with Hunspell static library:
-g++ -lhunspell example.cxx 
+
+	g++ -lhunspell example.cxx 
 
 Dictionaries
 ------------
 
 Myspell & Hunspell dictionaries:
-http://extensions.libreoffice.org
-http://cgit.freedesktop.org/libreoffice/dictionaries
-http://extensions.openoffice.org
-http://wiki.services.openoffice.org/wiki/Dictionaries
+
+- http://extensions.libreoffice.org
+- http://cgit.freedesktop.org/libreoffice/dictionaries
+- http://extensions.openoffice.org
+- http://wiki.services.openoffice.org/wiki/Dictionaries
 
 Aspell dictionaries (need some conversion):
-ftp://ftp.gnu.org/gnu/aspell/dict
+
+- ftp://ftp.gnu.org/gnu/aspell/dict
+
 Conversion steps: see relevant feature request at http://hunspell.github.io/ .
 
 László Németh

third_party/hunspell/README.chromium

 Name: hunspell
 URL: http://hunspell.sourceforge.net/
-Version: 1.5.4
+Version: 1.6.0
 License: MPL 1.1/GPL 2.0/LGPL 2.1
-License File: COPYING
+License File: COPYING.MPL
 Security Critical: yes
 
 Description:
-This is a partial copy of Hunspell 1.5.4 with the following changes:
-* Remove '#include "config.h"' from src/hunspell/hunspell.hxx
+This is a partial copy of Hunspell 1.6.0 with the following changes:
+* Move README.md onto the README symlink.
 * Change src/hunspell/filemgr.hxx and src/hunspell/filemgr.cxx to use
   LineIterator.
 * Add ScopedHashEntry, which creates temporary hentry objects, to
@@ -27,7 +27,7 @@ steps, or simply run update_google_patch.sh from the commandline.
 1) Checkout hunspell:
    $ git clone https://github.com/hunspell/hunspell.git
    $ cd hunspell
-   $ git checkout v1.5.4
+   $ git checkout v1.6.0
 2) Apply the existing patch:
    $ patch -p0 -i ~/src/third_party/hunspell/google.patch
 3) Make your new changes inside the CVS hunspell directory.

third_party/hunspell/src/hunspell/README

-Hunspell spell checker and morphological analyser library
-
-Documentation, tests, examples: http://hunspell.github.io/
-
-Author of Hunspell:
-László Németh (nemethl (at) gyorsposta.hu)
-
-Hunspell based on OpenOffice.org's Myspell. MySpell's author:
-Kevin Hendricks (kevin.hendricks (at) sympatico.ca)
-
-License: GPL 2.0/LGPL 2.1/MPL 1.1 tri-license
-
-The contents of this library may be used under the terms of
-the GNU General Public License Version 2 or later (the "GPL"), or
-the GNU Lesser General Public License Version 2.1 or later (the "LGPL",
-see http://gnu.org/copyleft/lesser.html) or the Mozilla Public License
-Version 1.1 or later (the "MPL", see http://mozilla.org/MPL/MPL-1.1.html).
-
-Software distributed under these licenses is distributed on an "AS IS" basis,
-WITHOUT WARRANTY OF ANY KIND, either express or implied. See the licences
-for the specific language governing rights and limitations under the licenses.

third_party/hunspell/src/hunspell/affixmgr.cxx

@@ -2126,7 +2126,7 @@ struct hentry* AffixMgr::compound_check(const std::string& word,
             wordnum = oldwordnum2;
 
             // perhaps second word is a compound word (recursive call)
-            if (wordnum < maxwordnum) {
+            if (wordnum + 2 < maxwordnum) {
               rv = compound_check(st.substr(i), wordnum + 1,
                                   numsyllable, maxwordnum, wnum + 1, words, rwords, 0,
                                   is_sug, info);
@@ -2699,7 +2699,7 @@ int AffixMgr::compound_check_morph(const char* word,
         wordnum = oldwordnum2;
 
         // perhaps second word is a compound word (recursive call)
-        if ((wordnum < maxwordnum) && (ok == 0)) {
+        if ((wordnum + 2 < maxwordnum) && (ok == 0)) {
           compound_check_morph((word + i), strlen(word + i), wordnum + 1,
                                numsyllable, maxwordnum, wnum + 1, words, rwords, 0,
                                result, &presult);

third_party/hunspell/src/hunspell/hunspell.hxx

@@ -87,9 +87,12 @@
 
 #define MAXSUGGESTION 15
 #define MAXSHARPS 5
-#define MAXWORDLEN 176
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+#ifndef MAXWORDLEN
+#define MAXWORDLEN 100
+#endif
+
+#if defined __GNUC__ && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
 #  define H_DEPRECATED __attribute__((__deprecated__))
 #elif defined(_MSC_VER) && (_MSC_VER >= 1300)
 #  define H_DEPRECATED __declspec(deprecated)

third_party/hunspell/src/hunspell/license.hunspell

-/* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Hunspell, based on MySpell.
- *
- * The Initial Developers of the Original Code are
- * Kevin Hendricks (MySpell) and Laszlo Nemeth (Hunspell).
- * Portions created by the Initial Developers are Copyright (C) 2002-2005
- * the Initial Developers. All Rights Reserved.
- *
- * Contributor(s):
- * David Einstein 
- * Davide Prina
- * Giuseppe Modugno 
- * Gianluca Turconi
- * Simon Brouwer
- * Noll Janos
- * Biro Arpad
- * Goldman Eleonora
- * Sarlos Tamas
- * Bencsath Boldizsar
- * Halacsy Peter
- * Dvornik Laszlo
- * Gefferth Andras
- * Nagy Viktor
- * Varga Daniel
- * Chris Halls
- * Rene Engelhard
- * Bram Moolenaar
- * Dafydd Jones
- * Harri Pitkanen
- * Andras Timar
- * Tor Lillqvist
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-#ifndef MOZILLA_CLIENT
-#    include "config.h"
-#endif

third_party/hunspell/src/hunspell/license.myspell

-/*
- * Copyright 2002 Kevin B. Hendricks, Stratford, Ontario, Canada
- * And Contributors.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * 3. All modifications to the source code must be clearly marked as
- *    such.  Binary redistributions based on modified source code
- *    must be clearly marked as modified versions in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY KEVIN B. HENDRICKS AND CONTRIBUTORS 
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL 
- * KEVIN B. HENDRICKS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *
- * NOTE: A special thanks and credit goes to Geoff Kuenning
- * the creator of ispell.  MySpell's affix algorithms were
- * based on those of ispell which should be noted is
- * copyright Geoff Kuenning et.al. and now available
- * under a BSD style license. For more information on ispell
- * and affix compression in general, please see:
- * http://www.cs.ucla.edu/ficus-members/geoff/ispell.html
- * (the home page for ispell)
- *
- * An almost complete rewrite  of MySpell for use by  
- * the Mozilla project has been developed by David Einstein 
- * (Deinst@world.std.com).  David and I are now 
- * working on parallel development tracks to help 
- * our respective projects (Mozilla and OpenOffice.org 
- * and we will maintain full affix file and dictionary 
- * file compatibility and work on merging our versions 
- * of MySpell back into a single tree. David has been 
- * a significant help in improving MySpell.
- * 
- * Special thanks also go to La'szlo' Ne'meth 
- * <nemethl@gyorsposta.hu> who is the author of the 
- * Hungarian dictionary and who developed and contributed 
- * the code to support compound words in MySpell 
- * and fixed numerous problems with the encoding 
- * case conversion tables.
- *
- */

third_party/hunspell/src/hunspell/suggestmgr.hxx

@@ -181,8 +181,12 @@ class SuggestMgr {
                   const std::vector<mapentry>&,
                   int*,
                   clock_t*);
+  int ngram(int n, const std::vector<w_char>& su1,
+            const std::vector<w_char>& su2, int opt);
   int ngram(int n, const std::string& s1, const std::string& s2, int opt);
   int mystrlen(const char* word);
+  int leftcommonsubstring(const std::vector<w_char>& su1,
+                          const std::vector<w_char>& su2);
   int leftcommonsubstring(const char* s1, const char* s2);
   int commoncharacterpositions(const char* s1, const char* s2, int* is_swap);
   void bubblesort(char** rwd, char** rwd2, int* rsc, int n);